Adding 'isolates' argument to LOG to get rid of multiple TLS fetches in profiling.

src/x64/stub-cache-x64.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 941 matching lines @@
 
     // Go to the next object in the prototype chain.
     current = prototype;
   }
 
   // Check the holder map.
   __ Cmp(FieldOperand(reg, HeapObject::kMapOffset), Handle<Map>(holder->map()));
   __ j(not_equal, miss);
 
   // Log the check depth.
-  LOG(IntEvent("check-maps-depth", depth + 1));
+  LOG(isolate(), IntEvent("check-maps-depth", depth + 1));
 
   // Perform security check for access to the global object and return
   // the holder register.
   ASSERT(current == holder);
   ASSERT(current->IsJSGlobalProxy() || !current->IsAccessCheckNeeded());
   if (current->IsJSGlobalProxy()) {
     __ CheckAccessGlobalProxy(reg, scratch1, miss);
   }
 
   // If we've skipped any global objects, it's not enough to verify
@@ skipping 2460 matching lines @@
   __ TailCallRuntime(Runtime::kSetProperty, 5, 1);
 
   return GetCode(flags);
 }
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64